Embedded Modems

Embedded modems are hardware devices that enable appliances to communicate to distant hosts through the internet.


How do embedded modems work?


Embedded modems contain a Data Access Arrangement (DAA), data pump and modem code. The data pump employs modem code to translate data to a standard protocol (internet or fax) at a specific bit rate. This means that devices connected to the embedded modem have email capability, offer standard web-page hosting and can download files.


Handheld computers and appliances become more useful when they can link to remote hosts. Set top boxes for interactive satellite and cable television rely on embedded modems to communicate shopping orders, billing information, pay-per-view and interactive programming.


Unlike wired modems which are in their own enclosure, most embedded modems are typically surface mounted directly onto the surface of printed circuit boards.


Types of embedded modems


Embedded modems can be distinguished from one another by their architecture (where the processing takes place). They fall into two main categories: Controller based (processing takes place in the modem) and controllerless (the generation of commands and data compression are performed by the PC).


...
Read more Read less

Filters

Viewing 1 - 2 of 2 products
Results per page
Description Price Supply Voltage Dimensions Weight Height Width Data Rate Depth Maximum Operating Temperature Minimum Operating Temperature
RS Stock No. 134-9524
Mfr. Part No.EM7455
$402.73
Each
units
3.13 → 4.4V 42 x 30 x 2.3mm 6.5g 2.3mm 42mm 50 (Peak Upload Rate) Mbit/s, 300 (Peak Download Rate) Mbit/s 30mm +85°C -40°C
RS Stock No. 134-9523
Mfr. Part No.MC7455
$411.73
Each
units
3.13 → 3.6V 51 x 30 x 2.7mm 8.7g 2.7mm 51mm 50 (Peak Upload Rate) Mbit/s, 300 (Peak Download Rate) Mbit/s 30mm +85°C -40°C
Related Products
BT121 is a Bluetooth 4.1 Smart Ready compliant ...
Description:
BT121 is a Bluetooth 4.1 Smart Ready compliant module that integrates a high performance Bluetooth radio, a low-power ARM Cortex microcontroller and a Bluegiga Bluetooth Smart Ready stack. This Smart Ready device provides simultaneous BR/EDR and BLE connectivity , communicating ...
The linkCONNECT eries of self-managing cellular modems makes ...
Description:
The linkCONNECT eries of self-managing cellular modems makes connecting your equipment over 2G or 3G networks fast and simple The Siretta linkCONNECT software is easily configurable to your needs and will auto negotiate, connect and reboot as necessary to maintain ...
The UC20 is a Quectel UMTS/HSPA+ module offering ...
Description:
The UC20 is a Quectel UMTS/HSPA+ module offering a maximum data rate of 14.4Mbps downlink and 5.76Mbps uplink. The module is designed to provide customers with European and global network coverage. The UC20 is an embedded HSPA+/EDGE engine with Rx-diversity. ...